# get

Get the value at a key as a Filtered.

## Signatures

```ts
export declare const get: {
    <K extends string>(key: K): <V, E, R>(ref: RefRecord<K, V, E, R>) => RefSubject.Filtered<V, E, R>;
    <K extends string, V, E, R>(ref: RefRecord<K, V, E, R>, key: K): RefSubject.Filtered<V, E, R>;
};
```

## Why

Models the possibly absent result of get as Filtered state, so absence stays explicit while
later source versions can make a value available.

## Ownership and lifetime

The get view retains no independent value. Its Effect read fails with NoSuchElement
while absent; the observing Scope owns and finalizes its Fx subscription.